baber/WOPTO huggingface dataset:
Patent GB-1150732-A (GB)
Title: Cellular Polymeric Material from Dihydropyranyl Ester Blends
IPC: C08J9/14
Filed: 1965-07-06
Abstract: 1,150,732. Foamable dihydropyranyl ester blends. CANADIAN INDUSTRIES Ltd. 16 June, 1966 [6 July, 1965], No. 28575/65. Headings C3C and C3P. The invention comprises a cellular polymeric material which is the reaction product of a foamable composition comprising a blend of esters of the formula where n 1  and n 2  are integers at least one of which has a value of at least 2, R 1  is a divalent aliphatic radical having 1-4 carbon atoms, A is a linking aliphatic radical having a valence equal to n 1  and Ar is a linking aromatic radical having a valence equal to n 2 , a foaming agent and a catalyst. The ester blend ingredients are prepared by reacting a dihydropyranyl groupcontaining compound, having terminal dihydropyranyl rings linked by a single ester linkage, in successive steps with an aliphatic polyhydric alcohol to give an ester and a dihydropyranyl alcohol and the latter is then reacted with an alkyl ester (the alkyl group having 1-4 carbon atoms) of an aromatic carboxylic acid to give another ester. The ester products of the 2 steps are combined to form the ester blend. The two steps may be reversed or combined. Ester exchange catalysts must be used to carry out the above reactions, for example sodium methoxide, magnesium dihydropyranyl methoxide and the sodium alkoxides of aliphatic polyhydric alcohols such as 1,2,6-hexanetriol. Examples of suitable dihydropyranyl compounds are 3,4- dihydro - 2H - pyran - 2 - methyl - (3,4 - dihydro-2H-pyran-2-carboxylate); 3,4-dihydro- 5 - methyl - 2H - pyran - 2 - methyl - (3,4 - dihydro - 2H - pyran - 2 - carboxylate); and 3,4- dihydro - 5 - methyl - 2H - pyran - 2,2 - dimethyl - (3,4 - dihydro - 2H - pyran - 2 - carboxylate). Suitable aliphatic polyhydric alcohols include polypropylene glycols, ethylene glycol, castor oil, sugar alcohols, polyether condensates of polyhydric alcohols and olefin oxides, 1,5-pentanediol, glycerol, 1,2,6-hexanetriol, and hydroxy-containing esters and polyesters. Suitable esters of aromatic polycarboxylic acids are lower alkyl esters of phthalic, isophthalic, terephthalic, trimellitic and trimesic acids. Preferred foaming agents are halogenated hydrocarbons. Polymerization catalysts may be acidic such as p-toluene-sulphonic acid and Lewis acids or non-acidic; many examples are given. The foamable compositions may also include flame retardants, surfactants, dyes, fillers, stabilizers, antioxidants, extenders, plasticizers and viscosity modifiers. Foaming is carried out by stirring the ingredients to mix them and then pouring into a mould or by mixing in the space to be filled with foam.
Patent GB-1044611-A (GB)
Title: Process for the production of expanded polymers from mixtures of unsaturated polyesters and copolymerisable monomers
IPC: C08J9/10
Filed: 1963-07-19
Abstract: Expanded polymers from mixtures of esters of saturated dihydric alcohols and ethylenically a ,b -unsaturated dicarboxylic acids and copolymerizable monomers are prepared by polymerizing in the presence of azo- and hydrozo-compounds, which act simultaneously as expanding agents and polymerization initiators. Preferred such compounds are diphenylsulphone-3,31-disulphohydrazide, azodicarbonamide, and diphenyloxide - 4,41 - disulphohydrazide, which may be used in amounts of 3 to 30%, preferably 4 to 10%, by weight of the pre-polymerized mixture. Suitable unsaturated acids are maleic and fumaric acids and their anhydrides, and the esters therefrom may be modified by partial esterification with saturated dicarboxylic acids, e.g. phthalic, isophthalic, succinic, adipic or sebacic acids, or alternatively by inclusion of esters of mono-, tri-, or higher hydric alcohols and mono-, tri-, and higher basic acids.  Unsaturated esters modified by long chain acids such as adipic or pimelic acids, and long chain glycols, may be used for preparing elastic foams. Suitable co-monomers are styrene, and acrylic or fumaric esters, e.g. octyl or butyl fumarate.  Other additives may be plasticizers, fillers, and flame retardants such as chloroparaffins and antimony trioxide.
Patent GB-285976-A (GB)
Abstract: 285,976. Appleby, J. A., and Wakefield & Co., Ltd., C. C. Nov. 23, 1926. Tapping.-A faucet union 12 is connected to an oil drum or other liquid container 10 having a tubular spout 11 formed with one or more radially-extending abutments 20 by means of dog bolts 16 which engage said abutments and are connected to the union through lugs 15 thereon. The union is prowided with a range 13 to accommodate a packing ring 14 against which the spout bears, while the hook-like ends 21 of the bolts 16 are wider .than the diameter of their shanks and the widened ends are curved to conform to the portion of the abutting spout. The outer end of the union 18 is interiorly screwthreaded for the reception of a faucet, or alternatively said union may itself be a faucet having a lateral outlet 19 which is opened and closed by a plug engaging the threaded portion 18.
Patent GB-464409-A (GB)
Title: Improvements in and relating to thermally operated electric switches
IPC: H01H37/46
Filed: 1935-10-16
Abstract: 464,409. Thermal switches. REINGRUBER, F., and REINGRUBER, J. Oct. 16, 1935, No. 28603. Convention date, Oct. 17, 1934. [Class 38 (v)] A thermal switch for regulating the temperature of an electric iron or other device comprises an expanding bar 49 which engages a lever 44 moving this about its pivot 17 so that a screw 45 mounted in its upper end presses a plate 42 on the movable contact lever to the left causing the circuit to the heating element 14 to be opened. The movable contact lever is mounted at one end on a. blade spring which tends to hold its other end against a fixed contact. A spring 47 pulls the screw 45 to the right and keeps the lever 44 pressed against the bar 49. The temperature at which the switch operates is adjusted by means of a knob 46 fixed on the screw 45.
Patent GB-794056-A (GB)
Title: Electric capacitor and method for producing same
IPC: H01G4/28
Filed: 1955-10-07
Abstract: 794,056. Capacitors. AEROVOX CORPORATION. Oct. 7, 1955 [Oct. 7, 1954], No. 28676/55. Class 37. A capacitor is made by coating a ceramic core in its unfired state with a layer of a refractory metal (e.g. platinum or palladium) which will not melt or oxidize at the firing temperature of the core, applying a slurry or slip of ceramic to the coated core to form a thin uniform ceramic film upon the metal layer and then firing the unit so formed after which an outer metallic electrode coating is applied thereto. Alternatively further alternate layers of refractory metal and ceramic slip may be applied before the unit is fired and the outer electrode applied. Fig. 1 shows a construction comprising a cylindrical ceramic core 10, a refractory metal coating 11, ceramic delectric 15 and outer silver coating 16. Connection is made to the electrode coating 11 by means of a silver coating 19 which is applied to one end of the capacitor where the electrode 11 is exposed; leads 18, 21 may then be soldered to the silver layers at opposite ends of the capacitor. Fig. la shows an alternative arrangement wherein the leads 18, 21 are wound round the cylindrical side wall of the capacitor and soldered into place. In a modification, Fig. 3 (not shown), the ceramic core is in the form of a hollow tube, the successive metal and ceramic layers being applied to cover both the inner and outer surfaces of the tube. Fig. 6 shows a section through a multiple unit comprising seven cylindrical capacitors, as illustrated in Fig. 1, mounted in parallel within a common casing. Fig. 8 shows a section through a similar multiple unit comprising three hollow tubular capacitors nesting one within the other. Fig. 9 illustrates a further embodiment comprising a ceramic'core in the form of a rectangular plate 500, on which are deposited refractory metal layer 503, ceramic coating 505 and outer silver electrode 507. A further silver coating 509 to which a lead may be soldered is provided in contact with the inner electrode layer 503. Fig. 10 (not shown) shows two such capacitors stacked one above the other.
Patent GB-471014-A (GB)
Title: Improvements in or relating to labelling devices
IPC: B65C9/22
Filed: 1936-10-22
Abstract: 471,014. Labelling-machines. WEISS, J. Oct. 22, 1936, No. 28710. Convention date, Oct. 23, 1935. [Class 73] A labelling - machine comprises a rotary label carrier 1 which picks up, by suction or other known means, a label from a pile 6, carries it past a gumming device 9, and applies it to a bottle 5 on a conveyer 4, the bottle being supported by a reciprocating member 10 which moves with the bottle at the moment of transfer. In a modification the bottles are supported by a separate conveyer, mounted on vertical rollers and fitted with cradles which embrace the bottles.
Patent GB-504292-A (GB)
Title: Improvements in or relating to tobacco pipes
IPC: A24F3/02
Filed: 1937-10-22
Abstract: 504,292. Tobacco pipes. CAMPBELL, SIR M. Oct. 22, 1937, No. 28917. [Class 130] A disc 27 for ejecting ash &c. is disposed in the bowl below the end 14 of the stem bore 15 and is carried on a rod 17, which passes centrally through the bottom wall of the bowl and is pivoted at 19 to an extension 18 of the rod which can be turned to lie in a groove 20 below the stem. The pivot 19 may prevent the extension 18 from rotating further from its position against the pipe stem than the position of alignment with the rod 17. The periphery of the disc 27 has teeth for removing carbon '&c. from the sides of the bowl. The disc may be flat or dished as shown. The extension 18 of the rod may be retained in the groove 20 by a split end 23 or other form of spring device, and a pin 26 prevents the rod from being drawn completely through the base of the bowl.
Patent GB-1506640-A (GB)
Title: Salts of s-adenosyl-l-methionine
IPC: C07C309/28
Filed: 1975-07-10
Abstract: 1506640 Salts of S-adenosyl-L-methionine BIORESEARCH SAS 10 July 1975 [12 July 1974] 28984/75 Heading C2C Novel simple salts of S-adenosyl-L-methionine (SAM) with methanesulphonic, ethanesulphonic, n-dodecane-sulphonic, octadecanesulphonic, 2-chloro-ethanesulphonic, 2-bromoethanesulphonic, 2-hydroxyethanesulphonic, 3 - hydroxypropanesulphonic, d-, l- or dl-10- camphorsulphonic, d-, l or dl-3-bromo-camphorsulphonic, cysteic, benzenesulphonic, fchlorobenzenesulphonic, t-mesitylenesulphonic 4 - biphenylsulphonic, 1- or 2 - naphthalenesulphonic 5 - sulphosalicyclic, f - acetylbenzenesulphonic 1,2-ethanedisulphonic, obenzenedisulphonic or chondroctinesulphuric acid or double salt with one of the above sulphonic acids and sulphuric acid are prepared by (1) preparing a filtered aqueous solution of SAM (ii) precipitation of the SAM using a saturated solution of picrolonic acid in water or an organic solvent soluble in water then for single salts (iii) filtering the precipitate and and dissolving the filtered precipitate in a solution of the appropriate sulphonic acid and (iv) adding to the solution an organic precipitant for the SAM salt that is miscible with the solvent used in (iii) and for double salts (iii<SP>1</SP>) filtering the precipitate and dissolving it in 50 : 50 u/v mixture of a solvent miscible with water and an aqueous solution containing equal normalities of the appropriate sulphonic acid and sulphuric acid. The above salts have use in the treatment of hyatopia, hyperdeslipidenin, generalized or local arteriosclerosis, psychiatric manifestations of the depressive and neurological type, degenerative arthropathy, neurological pain manifestations and disturbances of the sleepwalking rhythym. They form with a carrier or diluent a pharmaceutical composition which may be administered orally or parenterally.
Patent GB-1203212-A (GB)
Title: Sound-attenuating structure
Inventor: DAVIDSON JOHN WINGATE
IPC: C08J9/00
Filed: 1966-06-28
Abstract: 1,203,212. Foam plastics laminate. GREATER LONDON COUNCIL, J. W. DAVIDSON and M. W. DAVIDSON. 12 Sept., 1967 [28 June, 1966], No. 29021/66. Heading B5N. [Also in Division C3] A method of making a sound attenuating structure comprises foaming a liquid of very high viscosity to yield a stable gas-in-liquid cellular foam the intercellular walls of which comprise liquid having a high hysteresis and a high viscosity, the foaming being effected between enclosing walls which are impervious to the foam, or the foam first being produced and then enveloped in a skin impervious to the foam. The foam may be formed by " blowing "  with gas a liquid polymer or plastic material of high viscosity, which may be dissolved in a solvent, in the presence of a cross-linking agent, by mixing a polyester with a di- or polyisocyanate and foaming, or by polymerizing and blowing a monomer or a mixture of monomers together with a cross-linking agent under conditions such that part of the polymer is more highly cross-linked than the remainder. The foam may be generated in the cavities of a double wall or pre-erected partition, or in a mould between walls of plasterboard. Alternatively it is sprayed on to a flexible sheet of paper or plastics material and is then enveloped in the sheet. The structure may be used as a wall, floor, ceiling, door, cubicle or hood, and is heat and sound insulating.
Patent GB-1004621-A (GB)
Title: Improvements in transistor switching circuits, especially for use in modulators
Inventor: MORRISON JOHN JACK
IPC: H03F3/387
Filed: 1960-08-22
Abstract: 1,004,621. Transistor amplifying; switching circuits; amplitude modulation systems; pulse modulation circuits. HONEYWELL CONTROLS Ltd. Aug. 22, 1961 [Aug. 22, 1960], No. 29036/60. Headings H3R, H3T and H4L. A switching or modulator circuit comprises a transistor and a source of control voltage connected between the base electrode of the transistor and a junction between two resistances R1, R2 connected respectively to the emitter and collector electrodes. The resistances are adjusted in value so that at zero D.C. input applied across the emitter and collector the ratio of the forward diode resistance r 2  of the emitter-base diode to the resistance of the emitter-connected resistance R2 is equal to the ratio of the collector-base forward diode resistance r 1  and the resistance of the collector-connected resistance R1. The transistor is preferably a symmetrical junction one. A practical circuit is as shown in Fig. 4 wherein resistors R1, R2 are provided by two portions of potentiometer winding 26 and a diode network D1, D2, D3 is connected as shown to prevent positive half-cycles of the control waveform applied over transformer 16 from reaching the base of transistor 11. In order to overcome transient voltages induced into the secondary winding 19 the primary 20 is screened at 22 and in order to avoid the effect of the secondary to core capacity a further screen 23 is provided which is connected to the wiper 24 of potentiometer 25. To calibrate the circuit the input leads 12 are shorted and potentiometer 26 adjusted to give zero output, then with the input leads 12 open-circuited potentiometer 25 is adjusted to remove transient spikes from the output waveform. The control voltage may be sinusoidal. The modulator may be coupled to the following A.C. amplifier by a capacitor or transformer. Sine waves may be converted to pulses for driving the modulator using the circuit of Fig. 7 (not shown).
Patent GB-1126110-A (GB)
Title: Universal joint
Inventor: BRIGGS WALTER HENRY
IPC: F16D3/36
Filed: 1966-06-29
Abstract: 1,126,110. Universal joints. BURMAN & SONS Ltd. 8 May, 1967 [29 June, 1966], No. 29183/66. Heading F2U. A Hooke's joint comprises an intermediate rectangular block 14 seating perpendicular pairs of ball pivots 15 engaging sockets formed in L-shaped pressed metal fork halves 12a bolted at 13 in pairs to the connected shafts 10, 11 which may be of round, hexagonal or, as shown, square cross-section, the halves 12a being notched at 12b to seat thereon, and the transverse bolts 13 passing through their respective shafts. An oil soaked felt washer (not shown) may be inserted between each fork part &c. to provide lubrication.
Patent GB-207805-A (GB)
Title: Improved appliance for playing a game
IPC: A63F7/06
Filed: 1923-11-20
Abstract: 207,805. Taylor, R. A. M. Nov. 29, 1922, [Convention date]. Outdoor games; netting. - A balloon or other buoyant article is hit by players across a net similar to a tennis net, the playing space being totally enclosed by a net or nets. The ends 2 and sides 3 of the enclosing netting mav be formed in one piece with the top 1 or may be separate and attached by hooks 4. The enclosing netting, together with the net 9 over which the balloon 13. is played, is supported by cords 5 attached to hooks 6 projecting from posts or the walls of the room in which the game is played. The lower edges of the enclosing netting are either attached to the floor or ground or held down by weights. The netting may be made of any suitable material, such as string, cord, twine, tape, jute, hemp, cutton or rug-wool. Reference has been directed by the Comptroller to Specification 26829/13.
Patent GB-496773-A (GB)
Title: Process for the manufacture of anhydrous beryllium fluoride free from oxide
IPC: C01F3/00
Filed: 1937-10-27
Abstract: Substantially pure anhydrous beryllium fluoride free from oxide is obtained by acting on beryllium hydroxide at elevated temperature with hydrofluoric acid which is dry or has a humidity of less than 20 per cent.  A continuous current of hydrofluoric acid may be passed over the hydroxide, if desired under pressure, and the temperature used is preferably lower than the fusion temperature of beryllium fluoride, say 700-750 DEG  C.  Prior to the reaction, the beryllium hydroxide may be compressed, and reaction may be effected in apparatus coated with or composed of fluorspar or beryllia.  Removal of water vapour may be ensured by carrying out the reaction in the presence of gaseous carbon dioxide. Specifications 345,902 and 485,711 are referred to.
Patent GB-1261622-A (GB)
Title: Improvements in or relating to metal/air cells
IPC: H01M4/02
Filed: 1969-06-10
Abstract: 1,261,622. Air cell. LEESONA CORP. 10 June, 1969 [10 June, 1968], No. 29387/69. Heading H1B. A metal-air cell comprises an outer case 33, having ventilating means therein, a cathode 11, concentric with and disposed within the case, the cathode having a gas-permeable, liquid impermeable face and an electrocatalytic face, a porous metallic anode 1, the anode and cathode being one inside the other, liquid-tight closure means 5, for the case and an electrolyte between the electrodes. The gas side of the cathode may be of P.T.F.E. The electrolyte side may comprise a mixture of P.T.F.E. with a metal of Group VIII or Group I B  of the Periodic Table. A current collector of porous metal may contact this face. The anode may be a plate with holes in it (Fig. 2, not shown) or a wire mesh filled with active metal, e.g. zinc. The electrolyte may be KOH contained in a reservoir 25 which may be ruptured before use by pin 23. Alternatively reservoir 25 may contain water and anhydrous KOH may be contained in the anode. The electrodes are separated by membrane 4 of a copolymer of vinyl chloride and acrylonitrile. The case and cap may be of polythene and the outside of the case may be protected by metal shield 31.
Patent GB-1537410-A (GB)
Title: Pin latch structure
IPC: E05C1/06
Filed: 1977-07-13
Abstract: 1537410 Sliding pin latch HARTWELL CORP 13 July 1977 [26 Aug 1976 27 Oct 1976] 29432/77 Heading E2A A sliding pin latch comprises an axially reciprocable latch pin 35 slidable in a sleeve 30 between extended (Fig. 2) and retracted (Fig. 3) positions by means of pivotable handle 5 and trigger assembly 10. Connected to the latch pin is an overcentre biassing means, including spring 43 and levers 45, 48, urging the latch pin 35 into its extended position when the handle is in its closed position and urging the pin into its retracted position when the handle is in its open position. The trigger assembly 10 is movable between a first position (Fig. 2) in which the assembly secures the handle in its closed and flush position by means of hooks 16 and a second position in which the assembly secures the handle in a manually accessible position while the latch pin remains extended. The handle's accessible position is determined by the clearance between the pin 27 and the bore 26.
Patent GB-173370-A (GB)
Title: Improvements in steam heating apparatus
IPC: B61D27/00
Filed: 1920-10-20
Abstract: 173,370. Cross, J. W., and British Air Brake Co., Ltd. Oct. 20, 1920. Spindles.-In order to ensure accurate seating of the closure-member 5 of a thermostaticallycontrolled valve carried by an expansion rod 2 of a steam-heated radiator, the member 5 is made of cylindrical form with a hemispherical inner end and is located in a recess 16 of slightly larger diameter than the member 5, the plug 17 in which the recess 16 is formed being secured to the rod 2 by a pin 18 of slightly less diameter than the holes through which it passes in the rod 2 and plug 17.
Patent GB-381354-A (GB)
Title: An improved electrical joint, coupling or connection
IPC: H01R35/04
Filed: 1931-10-26
Abstract: 381,354. Hinged couplings. MACINTOSH CABLE CO., Ltd., SARGENT, A., and ELDER, T., Sinfin Lane, Normanton, Derby. Oct. 26, 1931, No. 29680. [Class 38 (i ).] Connection between leads 4 and a socket coupling 17 is made through a ball-and-socket joint, the ball 7 having contact plates 8 on its surface that engage spring ball contacts 14 mounted in the socket wall 19. The housing 16 of each ball is formed as a unit with one socket 17. These units are laid in recesses in the opposed faces of a halved body 18, the halves being bolted together. The flex 5 is secured by a split ferrule 28 and a screw ring 13. Ventilation openings 11, 26 are provided for cooling. A switch may be arranged between one of the housings 16 and the corresponding socket.
Patent GB-399988-A (GB)
Title: Improvements relating to rakes
IPC: A01D7/06
Filed: 1932-10-25
Abstract: 399,988. Horse rakes. WATSON, J., Milford, Charleville, Co. Cork, Irish Free State. Oct. 25, 1932, No. 29833. [Class 6 (iii).] A tumbling-rake comprises a series of tines 1 attached at intervals to a transverse tubular metal bar 2 to which controlling handles 3 are secured, the underside rear ends of two 1b of the outer tines being provided with shockabsorbing devices each consisting of a strip 6 of spring steel secured at one end to the underside of the tine and bent outwards therefrom and round the rear of the tine being secured at its other end to the upper side of the tine by a bolt 6c that passes through the tine and extends through the strip 6. A coiled spring 7 is inserted over the bolt in the space between the tine and the strip. The tines are secured to the bar 2 by metal straps 4 passing over the bar and attached to the tines by bolts: W- shaped metal brackets 5 are secured at their centres to the tines whilst their free ends 5b pass through holes in the bar and are held thereon by nuts 5c. The handles 3 are provided with stays and braces 14 .. 17 and to each handle one end of a strip of spring steel 10 is attached the strip being bent as shown and terminating in an outwardly projecting lug. A spring 13 is interposed between each handle and its strip. The spring members 6, 10 cushion the rake during the tumbling operation. In a modification a long flat spring replaces the strip 6 and spring 7.